EXCLUSIVE AT NET-A-PORTER. Zimmermann's feminine 'Cassia' dress is made from lightweight linen in a fresh white hue. Designed with puffed sleeves, it has a babydoll silhouette that's gathered at the waist to create volume through the bust and mini skirt. The scalloped trims are so pretty. - White linen - Concealed hook and zip fastening at back - 100% linen; trim: 100% cotton; lining: 100% cotton - Dry clean